Android Floating Action Button

Example:

                                    
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:context=".FloatingActionButtonExample"
        android:padding="16dp">
    
        <TextView
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:text="This is the Floating Action Button"
           android:textColor="@color/colorOrange"
           android:textSize="20sp"
           android:layout_marginTop="20dp"
           android:layout_centerInParent="true"/>
   
        <android.support.design.widget.FloatingActionButton
           android:id="@+id/floating_button"
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:layout_alignParentBottom="true"
           android:layout_alignParentRight="true"
           android:src="@drawable/ic_home_black_24dp"
           />
   
</RelativeLayout>
                                    
                                  

Output